Fitment Information VW Golf GTI MK6 2.0T TFSI (2009, 2010, 2011, 2012, 2013, 2014) Emissions Compliance This is a catback exhaust and does not alter, replace, or modify any emissions equipment. Specs & Features This exhaust comes as either muffler less with one resonator or with two mufflers.  2.5" Exhaust with 3.5" Tip Catback Exhaust Stainless steel piping and muffler Direct bolt on replacement Rev9 exhaust systems deliver the most possible power from their minimal bends design.  Each exhaust is designed to have the smoothest possible exhaust flow to give you the least possible exhaust restriction, the most power, and the best sound. Rev9 exhausts are designed to have the best fitment and unless stated otherwise, are a direct bolt on replacement for your factory exhaust system.  Mandrel bent piping and TIG welded joints offer the best performance while being long lasting.